Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...b5/6. Bf1/6...Nd4

=Two Knights Defence:Fritz variation= 6 ... Nd4. This has Transposed into the Fritz variation

Theory Table
.
 * 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5 6.Bf1! Nd4

Estimated next move likelihood
c3 100%